ขอถามวิธีใส่เงื่อนไข (if) ใน echo table tag <td> ครับ

<table width="400" border="1">
  <tr>
    <td>-</td>
  </tr>
  <tr>
    <td>test</td>
  </tr>
</table>
<script src="jQuery.min.js"></script>
<script>
	$(function(){
		$('td').each(function(index, element) {
            var text=$(this).text();
			if(text == '-'){
				$(this).attr('align','center');;
			}
        });	
	});
</script>

<?php
if($guarantee == ""){
?>
          <td width ='8%' align='center'>-</td>
<?php
}else{
?>
	<td width ='8%' align='left'>$guarantee</td>
<?php
}
?>

$qrt_align = 'left';
if($guarantee == "-"){
    $qrt_align = 'center';
}

echo "<tr>
	<td width ='8%' align='left'>$company</td>
	<td width ='10%' align='left'>$name_contract</td>
	<td width ='5%' align='center'>$no_contract</td>
	<td width ='3%' align='center'>$date_contract</td>
	<td width ='3%' align='center'>$date_start</td>
	<td width ='3%' align='center'><font color='#be1c1c'>$date_stop</font></td>
	<td width ='5%' align='center'>$date_return_exp</td>
	<td width ='5%' align='center'>$date_return</td>
	<td width ='8%' align='center'>$money</td>
	<td width ='5%' align='center'><font color='#be1c1c'>$status</font></td>
	
	<td> width ='8%' align='$qrt_align'>$guarantee</td>

	<td width ='5%' align='center'>$name_record</td>
	<td width ='8%' align='center'>$name_government</td>
	<td width ='5%' align='center'>$location</td>
	<td width ='5%' align='center'>$secratary</td>
	<td width ='5%' align='center'>$secratary_buy</td>
	<td width ='5%' align='center'>$attorney</td>
	<td width ='5%' align='center'>$detail</td>
	<td width ='5%' align='center'>$file</td>
	<td width ='5%' align='center'>$time_guarantee</td>
	<td width ='5%' align='center'>$date_check</td>

	</tr> \n";